valutazioni - 5, GPA: 4.2
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Facilità d'uso
If, however, adjustments are necessary, or a new engine control board is installed in the generator, the following procedure should be followed (Figure 3.2): 1. Set all three potentiometers (pots) fully counterclockwise. 2. Under no load condition, increase the GAIN pot as much as possible without causeing instability. 3. Apply 1/4, 1/2, 3/4 and full load to the unit. Decrease the GAIN pot if there is instability at any load point. 4. Under full load condition, increase the stability pot until the unit returns to 60 Hertz (or 50 Hertz in 50 Hertz applications). 5. Reduce load to 3/4, 1/2, 1/4 and no load. Decrease the stability pot if there is instability at any load point. 6. Adjust differential pot to make the recovery to load changes even faster and minimize load change undershoot and overshoot. If it is set too high it may introduce oscillations at some load. It can be set to zero (full CCW) if a small amount causes oscillations at some load. Figure 3.2 — Engine Governor Adjustment 3.5 RETRANSFER AND SHUTDOWN When utility power source voltage has been restored, electrical loads may be transferred back to that source and the generator can be shut down as follows: • Verify that utility power supply voltage to the transfer switch has been positively turned OFF, using whatever means provided (such as utility main line circuit breaker). • Set the generator’s main circuit breaker to its OFF or OPEN position. • Let the generator engine run at no-load for a few minutes, to stabilize internal unit temperatures. • On the generator console, set the AUTO/OFF/ MANUAL switch to OFF. Wait for engine to come to a complete stop. • For transfer to UTILITY position, refer to the Owner’s Manual of the particular transfer switch. • Turn on the utility power supply to the transfer switch, using whatever means provided (such as a utility main line circuit breaker). The utility power source now powers the loads. PCB# 0E4906 REV. R49 D17 J2 C2 C26 U7 C27 R44 Q2 D19 C30 RL1 2 L3 LED1 C4 R25 C9 C21 D10 J1 R48 R1 U1 RL2 1 2 3 4 UNUSED GTS/ATS 50/60 HZ POSITION 1 50/60 HZ ON = 50 HZ OFF = 60 HZ POSITION 2 GTS/ATS Select ON = GTS OFF = ATS (standard mode) STABILITY DIFFERENTIAL DIP SWITCH 0 .. Section 3 — Operation QUIETSOURCE™ Liquid-cooled 30 kW Generators Section 4 — Maintenance QUIETSOURCE™ Liquid-cooled 30 kW Generators 3.6 AUTOMATIC OPERATION To set the system for fully automatic operation, proceed as follows: • Check that load circuits are connected to the utility power supply. • Set the AUTO/OFF/MANUAL switch to its AUTO position. • Set the generator main circuit breaker to its ON or CLOSED position. 3.7 WEEKLY EXERCISE CYCLE The engine control board will start and run the generator once every seven days for approximately 12 minutes. If utility should fail during this exercise period, the engine control board will transfer the load to the generator output and continue to run until utility returns. On the day, and at the time of day chosen for the generator to exercise, set the weekly exercise cycle as follows: 1. Place the AUTO/OFF/MANUAL switch in the AUTO position. 2. Press and hold the “Set Exercise” switch for three seconds, then release. At this time all five red LEDs will flash for approximately 10 seconds, then the engine will start and run for it’s 12 minute exercise period, then shut down. The generator will now start and run each week at the same time. If DC power to the control board is lost, the weekly exercise setting will be lost. This is indicated by all five red LEDs continually flashing. In this state the generator will still start and run in manual mode, or automatically start and run if UTILITY is lost while in Auto mode, but it will not perform a weekly exercise cycle. If a failure occurs while running in this mode, the five red LEDs will stop flashing, the individual fault LED will turn on and the engine will shut down. Once the AUTO/OFF/MANUAL switch has been switch to OFF, the individual fault LED will turn OFF and the five red LEDs will begin flashing to show exercise has still not been set. Figure 3.2 - “Set Exercise” Switch FUSE EE US FF S US FUSE 4A 15A BAT. MAIN CHARGER EE US FF US F US AUTO OFF OFF ON SET MANUAL EXERCISE TIME 4.1 MAINTENANCE PERFORMED BY AUTHORIZED SERVICE FACILITIES A. EVERY THREE MONTHS 1. Check battery state of charge and condition. 2. Inspect and test fuel system. 3. Check transfer switch. 4. Inspect exhaust system. 5. Check engine ignition system. 6. Check fan belts. B. ONCE EVERY SIX MONTHS 1. Test Engine Safety Devices (low oil pressure, low coolant level, high coolant temperature). C. ONCE ANNUALLY 1. Test engine governor. Adjust or repair, if needed. 2. Clean, inspect generator. 3. Flush cooling system. D. FIRST 100 OPERATING HOURS 1. Change engine oil and oil filter. (After initial change, service engine oil and filter at 150 operating hours or 6 months, whichever comes first.) 2. Retorque cylinder head. (See Torque Specs, Section 1.13.) 3. Retorque intake and exhaust m...